import Vue from 'vue'
import Router from 'vue-router'
import Login from './components/login.vue'
import Home from './components/home.vue'
import Welcome from './components/welcome.vue'
import Users from './components/user/user.vue'
import Rights from './components/power/Rights.vue'
import Roles from './components/power/Roles.vue'
import Cate from './components/goods/Cate.vue'
import Params from './components/goods/Parsms.vue'
import goodsList from './components/goods/List.vue'
import Add from './components/goods/Add.vue'
import Order from './components/order/Order.vue'
import Reports from './components/report/Report.vue'
Vue.use(Router)

const router = new Router({
  routes: [
    {
      path: '/',
      redirect: '/login'
    }, {
      path: '/login',
      component: Login
    },
    {
      path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [
        {
          path: '/welcome',
          component: Welcome
        },
        {
          path: '/users',
          component: Users
        },
        {
          path: '/rights',
          component: Rights
        },
        {
          path: '/Roles',
          component: Roles
        }, {
          path: '/categories',
          component: Cate
        }, {
          path: '/params',
          component: Params
        }, {
          path: '/goods',
          component: goodsList
        }, {
          path: '/goods/add',
          component: Add
        }, {
          path: '/orders',
          component: Order
        }, {
          path: '/reports',
          component: Reports
        }
      ]  
    }
  ]
})
router.beforeEach((to, from, next) => {
  /*  to  将要访问的路径  form 表示从哪个路径跳转而来 next 是一个函数表示放行 */ 
  if (to.path === '/login') return next()
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})
export default router
